Walking over oil stains with riot armor on bloodies it

[githubuser4141]

Testmerges: #55913 #55926

Reproduction: Don a suit of riot armor, find a patch of oil OR blood on the ground, walk over it wearing jack boots and riot armor.

Description:

Keeping your set of riot armor shiny and clean is very difficult as walking over oil stains (even when wearing footwear) will cause the armor to become bloodied.

[Tlaltecuhtli]

step 1 cover yourself in oil

[ghost]

Failed to reproduce on local server with riot suit from armory, roundstart sec jackboots and all types of CLEANABLE/oil.
Succesfully reproduced with same clothing and actual blood from an actual human mob, both bootprints and the stain itself.
Succesfully reproduced with many different shoe types and both sec and atmos hardsuit.
Failed to reproduce with a shoe type that caused this to occur with the atmos suit and a bulletproof armor.

Conclusion: this seems to be an intended behavior of exosuits that cover your shoes. The only buggy behavior here is the fact that the exosuit doesn't prevent the shoes from becoming bloody and possibly the oil thing if it does in fact occur.

P.S. Upon further testing I succesfully reproduced this in the original situation. Some bootprints can cause the exosuit and boots to become bloody. This will always occur with a given footpint decal but only some footprint decals do it.
The difference between the bloodying and non-bloodying prints seems to be the presence of forensics data in datum_components and comp_lookup. Both types are /obj/effect/decal/cleanable/blood/footprints.

The rightmost var editing window is for a non-bloodying stain. The other ones are for stains that get blood on you.

[ghost]

Forgot to mention: those were oil bootprints.

[TheBonded]

fixed by #57085, probably